I want to develop a site that would allow novices and experts to easily purchase bitcoin using prepaid card or credit card, without having to go through a ton of processes to get their coin & being bombarded with massive fees.
4). I obviously don't know everything at the moment, so what major problems should I look out for when it comes to this?
The problem is there is market of stollen Visa/MC cards finding ways how to safelly empty the cards without getting caught, so expect high % number of chargebacks by Visa/MC from these stollen cards. Thats why the fees are massive for such exchange.